If you have your Norton 360 installation files on a CD/DVD, just insert the disc into your CD-ROM/DVD drive and follow the on-screen instructions.
If you have purchased Norton 360 as a download version, you can download the latest Norton 360 software from within your Norton Account, or by using the instruction from our page about Norton 360 Installation (use download links from Step 3). Then, just start the installation, and follow the on-screen instructions.
In both CD and “download” version cases, you’ll use the activation key you got when you purchased your Norton 360. The activation key can be retrieved from your Norton Account.
For the installation of the newer Norton Security software service, see our Installing Norton Security page.